参数资料
型号: SX1508IULTRT
厂商: Semtech
文件页数: 22/41页
文件大小: 0K
描述: IC GPIO EXPANDER I2C 8CH 20QFN
特色产品: SX1508/SX1509 GPIO Expanders
标准包装: 1
接口: I²C
输入/输出数: 8
中断输出:
频率 - 时钟: 400kHz
电源电压: 1.2 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-UFQFN 裸露焊盘
供应商设备封装: 20-QFN-UT(3x3)
包装: 标准包装
包括: LED 驱动器 / 小键盘引擎
其它名称: SX1508IULDKR
ADVANCED COMMUNICATIONS & SENSING
Rev 1 – 30
th Oct. 2009
29
www.semtech.com
SX1507/SX1508/SX1509
World’s Lowest Voltage Level Shifting GPIO
with LED Driver and Keypad Engine
7:5
Unused
0xXX
RegTFallX
0x00
4:0
Fade Out setting of IO[X]
0 : OFF
1 - 15 : TFallX = (RegIOnX-(4xRegOffX[2:0])) * RegTFallX * (255/ClkX)
16 - 31 : TFallX = 16 * (RegIOnX-(4xRegOffX[2:0])) * RegTFallX * (255/ClkX)
0x2A
RegHighInput
0x00
7:0
Enables high input mode for each [input-configured] IO
0 : OFF. VIH max = 3.6V and VCCx min = 1.2V
1 : ON. VIH max = 5.5V and VCCx min = 1.65V
0x7D
RegReset
0x00
7:0
Software reset register
Writing consecutively 0x12 and 0x34 will reset the device (same as POR).
Always reads 0.
Table 12 – SX1508 Configuration Registers Description
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